Subject: Relative Abundance of Xiphophorus Fishes and Its Effect on Sexual Communication

Relative Abundance of Xiphophorus Fishes and Its Effect on Sexual CommunicationEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
As major river drainages separated and stream capture occurred, some populations of Xiphophorus fishes became geographically isolated from one another, while others came into contact with new Xiphophorus species. Sexual communication and mechanisms of reproductive isolation were likely influenced by the variation in community structure each population experienced. One swordtail species, Xiphophorus birchmanni, occurs both in streams where other Xiphophorus species are rare, or more typically with large populations of congeners. Using the X. birchmanni system, we tested the theory that species recognition should be favored ...
Source: Ethology - November 3, 2009 Category: Zoology Authors: Heidi S. Fisher, Gil G. Rosenthal Source Type: journals